If a child has a low fever and cough, we recommend actively seeking medical attention to improve blood tests, chest radiographs, mycoplasma antibodies and other related tests; 1. If the patient’s temperature is lower than 38.5°C, physical cooling is the main clinical approach, and if the temperature exceeds 38.5°C, antipyretic drugs, such as Merlin, can be given. 2. If the patient’s related test results suggest a bacterial infection, we can use If the patient’s test results indicate a bacterial infection, we can use antibiotics, such as cefixime, cefaclor, azithromycin, etc. 3.If the patient’s test results indicate a viral infection, we can use antipyretic drugs or antiviral drugs, such as Qingkai Ling, oseltamivir, etc. 4.If the patient is considered to have an atypical pathogenic infection, such as mycoplasma infection, we can use macrolide azithromycin, erythromycin, etc. Related drugs for treatment.